Shaft mucker



J. v. GRISMER SHAFT MUCKER il'ed Dec. 9, 1946 5 shams-sheet 1 Arron/vnPatented Dec. 27, 194? 2,492,217. SHAFT MUGKERA JosephlV-l .('lrsmexgS'i'l'verton,.dalot ApcatOnDe'cemHer 9, farsi serial Nbaetlgose s Claims(CL 214-141).

amucker of this'typef wherein axscoop bucket'A for removing dirt androck from the bottomrof a shaft is.` carried bya hook.' so mounted thatit may beiL shifted longitudinally-and' also swung vertic'aslly and.horizontally` so thatthe: scoop bucket maybe rock and dirt from allportionsioffthexbottom of the shaft andthef dirt and rock-.then'-duinped into; a hoisting bucket..

Another object offthef-inventiorf is to provide a` shaft mii-ckerhaving'. improved means-:for controlling'- movementsl ofi'.` th'e boom-4carrying the scoop' bucket, this controlling. means being soconstructed. and larranged that: it maybe operated by one workmanstanding near the.A bottom of thei frame erected in-tlie=.\shaft..

Another obj ectf of thez invention. to provide a shaft mucker havinga-.supportlfor--thef boom whichaisiirmly mounted across thebottom' of.the framebut canl be easily and. quickly shifted to a: lower positionwhen additional. framing is added as the shaft is deepened;

Another object r of. the inventionis to provide 'a1 shaft-mucker whichisfcomparatively' simple v in vconstruction .andeeasy tf1-operate'.v

Thefinverition-i is illustrated-in the accompanying; drawings wherein:

Fig. lis a view showingif the.y frame-:in vertical section and' themuckingy apparatus in side elevation.

Fig. 2 is a1 similar lview `showing the -mucking apparatus in: front:elevation;v

Fig; 3i is a' view sh'owir'xg the frame in transverse section andthemucki-ng apparatus inztop plan.

Fig; 4i isn-a'` fragmentary sectional view takenalongth`e"linef4"-4ofIE?lgm'e 3'.

Fig. 5 is a sectional view'- taken alongthe'li'ne Si-Eof Figure 3'.

The shaft Ii isv dugvertically. in the ground and as it is deepened'af'r-"ameisl erected in the shaft. Thisy flram'ev's formedofy heavy`beams and has asuitablevnmnberof vertically extending beams 2 andllhorizontally extendingbeams or crossstringer's andll. Sincecertainfofthe movedinto; position. for; removing? mechanism:theseaparticular orosssbeamsxzmawbe temporarily: oxnittedy at.:the'botto'm: ein the; frame until` the shaftahas--beendugsto :inch4-aideptlrgtliat additional.y framingehas; been .added to? the lower end1of the frame: thea mucklng; apparatus lowered' to. anew positionsatthebottonr ofsthe frame.

Dirt and .rock .are tof. be. dug; from; tliebottom of.: thelshaftbymeans ofaaiscoop buck-eti' 0r.shovel 'y 5: which isy mountedA betweenthea-form., ori arms 6: at the: front;4 end-` cfr-.a lri'ooun` 1iTheboom; is square in crossxsectinffandamaj befornedaoztwo channel.beams' haiingA thee.. Off; their: Side flanges Welded7 to?each.othenn.asizshcvznimFiigf urea4,.or as aunii'fi@sbislesiiseriaAThiselioomrslidably. passesi througlrr;A a. tubularzsieeve or. casing; 8which extends through7 a rectangular. frame? 9 having; outstanding.anges Iilwa'zlongits.: edges and at i'ts. topv and. bottom:the;.frame.formed midway its Widthwithpopeningsw. Irly to receivetrunn'ions izcarriedaby platesgl whiehxarersecured toftheifiaineabybolts-1:4.. Thetrunnions engage through. bushings la: mountedf throughupper and lower portionsaof;thecasing 8i and mounting* thecaslngiand'ftheaboorn.forV swinging mciveinen'tv transverselyl off: the shaft andthus allowing the scoop to. be shifted transversely= of the shaftv intoposition foriclearingi'dirt.:andzrock from thezbott'ompo the'rsha'ftfor-the. full width thereof.

351 ting about'. the side? beamv 3? toward which v the shaft I1 extendsand thebeafng.J` i8v carriesfa plate 21| through: Whichf-setfscrewsnarethreaded and j ourna-ledtof aashoe; v2 3- soil that this shoemaybeshifted .toward and" avv-ayV from the; shaft I6 and thus-moved intoand `'out of gripping; engage'- ment with abea'm Swat theroppositeside``of the shaft fromthevbeam engaged-:by the1.shoe2il;` It will thus beseen thatthebearingsfmay'bemounted atoppositefsides of the-lowerendfofthe `frame erected inthe shaft` and aslnce; the frame; 'v9 turns withthe rocker shafts theboom may haveY verticalv swinging `movenfient andthusimpartA scooping movement to. the bucket -or'` shovel 5 duringAremoval of dirtand-rock from -thebottomof the shaft, andllingofpthebucket; 2l by' means: .of

which the dirt-fandfroclc a'reehoistedzfrom` the shaft.

Sliding; movement off'y the boom. through the casing;y 3l is controlledfxbyf. av brakeiaZr/mountds in auf-internal'. recess atronesidefzotltheecasing 8 at the lower end of the frame.

and has a shank 26 which projects outwardly from the casing through anopening 21 and is pivoted to a rod 28 which passes through a slot 29formed in the confronting side wall of the frame 9 and extendslongitudinally in the rocker shaft I6. The rod is pivotally connectedwith a piston 30 which is slidable longitudinally in the rocker shaftand since the end portion of the rocker shaft in which the pistonoperates is blocked by a partition 3| this portion of the rocker shaftforms a cylinder for the piston. A exible tube or hose 32 leads from avalve 33 to the portion of the rocker shaft or cylinder between thepiston and the partition 3| and this valve is connected with a suitablesource of air under pressure. By actuating the valve air may be admittedinto the cylinder to shift the piston longitudinally and force the brakeinto gripping engagement with the boom and upon again actuating thevalve the air may be allowed to escape and thus allow the brake to moveto a position for releasing the boom and allowing the boom to slidethrough the casing. It will thus be seen that during use of the muckerthe boom may be allowed to slide through the casing as the bucket ismoved toward the position indicated by dotted lines in Figure l and soheld as the boom is swung forwardly for scooping rock and dirt from thebottom of the shaft. During this forward movement the brake may bereleased so that the boom may slide rearwardly until the bucket 5 isover the bucket 24 and the brake then again applied to hold the boomstationary and maintain the bucket 5 in position over the bucket 24while the hinged bottom 33 of the bucket 5 is released by the trip rope35 and allowed to swing to the dumping position. The scoop bucket ispivotally mounted between the forms or arms by pivot pins 35 and held inan angularly adjusted position by pins 36 which are passed throughopenings in the forks and through selected ones of the openings 31formed through side walls of the bucket. l

Transverse swinging movement of the sleeve or casing 3 about thetrunnions l2 for shifting the :and connected with an ear 42 projectinglaterally Vfrom the front end portion of the sleeve or casing 8.Flexible tubes or hoses 43 lead from end portions of :le cylinder 38 tothe valve 33 so that by manipulating this valve flow of air through the'tubes may be controlled andthe piston slid in the cylinder to'shiftthe-'casing and the boom transversely of the shaft l to adjustedpositions. The valve 33 is a conventional master valve and it will beunderstood that if desired separate valves may be provided forcontrolling flow of air through the tubes 32 and 43.

In order to control movements of the boom and sooo-sing or diggingofrock and dirt from the bottom of the shaft there have been providedcables la and 55. These cables are wound about hoisting drums 4S and 41.The cable 44 extends downwardlyfrom the drum 46 and across a roller 48,and after is then trained about the pulley 49 carried by the scoopbucket 5 and secured at its lower end to a screw eye carried by a crossbeam 4 The cable 45 extends downwardly fromthe drum 41 and after beingtrained about a pulley 5I is attached to an ear 52 at the rear edge ofthe bottom of the scoop bucket. Rotation of the drums is controlled bycontrols 53 and 54 having adjusting handles 55 and 56 from ends of whichextend pull ropes 51. 58, 59 and 60. These ropes are passed through eyes6l so that their lower ends will be held in position to be grasped by aworkman standing at the lower end of the frame near the valve 33. Byactuating the control 53 to allow the cable 44 to unwind from the drum46 and actuating the control 54 to cause the cable 45 to be wound uponthe drum 41 the boom may be swung to the position indicated by dottedlines in Figure 1 and the cable 44 may then be wound upon the drum 46 todraw the scoop bucket forwardly and upwardly with a load of rock anddirt to a position over the bucket 24 where it will be held by applyingthe brake 25 and the trip line 34 then pulled to release the bottom 33of the scoop bucket and allow this bottom to swing to an opened positionfor dumping contents of the scoop bucket into the hoisting bucket. Afterthe hoisting bucket 24 has been filled it is raised from the shaft andemptied and again lowered for refilling. When the depth of the shaftbecomes such that rock and dirt can not be removed by the scoop bucketadditional framing is added at the lower end of the frame erected in theshaft and the mucker mechanism lowered to the added framing.

Having thus described the invention what is claimed is:

1. A shaft mucker comprising a frame erected in a shaft, the shaft-framebeing formed of beams secured to each other whereby the depth of theframe may be increased as the shaft is deepened, a scoop at the lowerend of the frame having a bucket and a boom carrying the bucket andextending rearwardly therefrom, an open frame extending transversely ofthe shaft frame and mounted for rocking movement about a horizontal axisextending transversely of the shaft frame, a sleeve extending throughthe open frame and through which the boom slidably passes, said sleevebeing pivoted in the open frame for swinging movement transversely ofthe shaft about a vertical axis, a brake movable through a wall ofthesleeve into and out of position for gripping the boom and releasablyholding the boom against sliding movement longitudinally through thesleeve, a cylinder forming a portion of the horizontal axis of the openframe, a piston slidable longitudinally in said cylinder and having apiston rod extending from the inner end of the cylinder into the openframe and connected with said brake for applying and releasing the brakeduring movements of the piston, a second cylinder, a piston slidablelongitudinally in the second cylinder and having a piston rod extendingoutwardly through one end of the cylinder and connected with said sleevefor swinging the sleeve and the boom transversely in the shaft about thevertical axis of the sleeve, and cable connected with the bucket forcontrolling vertical tilting of the boom and the open frame about thehorizontal axis 'of the open frame and imparting dipping movements tothe bucket for scooping material from the bottom of theshaft.

2. A shaft mucker comprising a frame erected in a shaft, the shaft-framebeing formed of horiz'ontally and vertically extending beams, a scoop atthe lower end of the frame having a bucket and a boom carrying thebucket and extending rearwardly therefrom,` an open frame extendingtransversely ofthe shaft frame, rocker shafts extending from oppositesides of said open frame,

a shoe at the outer end of one rocker shaft for engaging a horizontallyextending beam of the shaft-frame, said shoe constituting a bearingrotatably supporting the companion rocker shaft, a bearing for the otherrocker shaft, a shoe for engaging second horizontal beamv of theshaftfrarne, screws threaded through the last mentioned shoe for firmlyholding the said shoes in gripping engagement with the companionhorizontally extending beams and removably supporting rocker shaft andthe open frame in the shaft-frame, a sleeve extending horizontallythrough the open frame and through which the boom slidably passes, saidsleeve being pivoted in the open frame for swinging movementtransversely of theshaft about a vertical axis, means for swinging Ethesleeve and the boom transversely of the open frame about the verticalaxis, and means for controlling vertical tilting of the sleeve and theopen frame about the horizontal axis of the open frame and impartingdipping movements tothe bucket for scooping material from the bottom ofthe shaft being dug.

3. A shaft mucker comprising a frame erected in a shaft, the shaft-framebeing formed of beams secured to each other whereby the depth of theframe may be increased as the shaft is deepened, a scoop at thelowervend of the frame having a bucket and a boom carrying the bucketand extending rearwardly therefrom, an open frame extending transverselyin the shaft frame and mounted for rocking movement about a horizontalaxis extending transversely of the shaft frame, a sleeve extendinghorizontally through lil the open frame and through which the boom slid-35 ably passes, said sleeve being pivoted in the open frame for swingingmovement transversely of the shaft about a vertical axis, means forswinging the sleeve and the boom transversely of the open frame aboutthe vertical axis, drums mounted in vthe shaft frame, cables wound aboutsaid drums and having portions extending downwardly in the shaft andconnected with front and rear portions of the bucket, said drums beingcontrolled by valves having cross heads constitutinghandles for thevalves, and operating lines for the valves extending from ends of theirhandles Ldownwardly in the shaft frame to a position in which they maybe grasped by an operator in thefshaft frame and pull exerted upon thelines to open and close the valves.

` JOSEPH V. GRISMER.

REFERENCES CITED The following references are of record in the 111e ofthis patent:

UNITED STATES PATENTS Number Name Date 1,615,284 Kennedy Jan. 25, 19271,522,456 Liebmann Mar. 29 1927 1,649,450 Daniel Nov. 15, 1927 1,987,982Wheeler Jan. 15, 1935 2,326,172 Riddell Aug. 10 1943 2,358,543 TolemireSept. 19, 1944 2,421,379 Harding June 3, 1947 22426591 Boskovich Sept.2, 1947 1'A FOREIGN PATENTS Number Country Date 486,168 Germany Nov. 11,1929 f"'323,883 Germany Aug. 11, 1920

